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HIERARCHICAL DIAGNOSTIC MODEL SYNTHESIS FOR DATAFLOW REAL-TIME COMPUTING SYSTEM 
 

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Subject of Research. The paper considers design issues for diagnostic tools of fault detection in addressing information exchanges between software modules for real-time dataflow computing systems. Despite the decomposition of the design processes in such systems, the issues of diagnostics and fault tolerance remain relevant for each hierarchy level. Method. The proposed synthesis procedures for the hierarchical model of a dataflow computing system are the result of the test diagnostics method development based on the parallel model application. Main Results. The paper presents a brief description of the test diagnostics method based on the parallel model. An algorithm for hierarchical diagnostics model synthesis is developed. The model minimizes the amount of diagnostic data transmitted through the exchange channels, reducing the redundancy level introduced into the system and thereby increasing the level of reliability. Practical Relevance. The developed hierarchical model reduces significantly the design time for diagnostic tools as a result of reducing the required number of diagnostic modules included in it.

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